//
//  ObersveArray.h
//  KVC的实现
//
//  Created by webplus on 17/8/31.
//  Copyright © 2017年 sanyi. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface ObersveArray : NSObject
@property (nonatomic,strong) NSMutableArray* arr;
-(void)addItem;
-(void)addItemObserver;
-(void)removeItemObserver;
@end
